There is a winnt.hlp file inside the i386 folder that will give you the commandline switches. For winnt.exe open a command window to the i386 folder and type winnt.exe /? for the syntax.
What are you trying to do?
I try install Windows Xp with winnt32 /command lines, can I install XP faster and I don't want type cd-key all times when installing Windows and other thing.